Swift 2, warning: could not load any Objective-C class information from the dyld shared cache

Question

I have found a few questions regarding this issue, yet none of them were helping with my problem. I am trying to save an object to core data using this code (which worked perfec

Answer 1

Swift 3:

Actually this problem happened often when you have any property in input declared as type NSError and the compiler expect an Error output, so change the input type to Error usually solve this issue.